ACE Weekly 02/06/04 - 02/12/04

All ACE spacecraft subsystems are performing nominally. A attitude maneuver 
was successfully executed on 02/06/04. The next attitude maneuver is 
scheduled to occur on 02/16/04.

============================================================================
Orbit Events:

Per Craig Roberts (FDF):
The next ACE transit begins February 22 and ends March 15 (a span of 22.49 
days). This one will involve the closest angular approach to the Sun yet 
seen, i.e., 0.63 degree (deg) from solar center. (By comparison, the solar 
angular radius as seen from Earth at that epoch will be approx. 0.27 deg). 
The updated details and epochs (UTC) follow:

22 Feb      05:22       4.75 deg inbound
28 Feb      15:51       2.0 deg inbound
1 Mar       17:19       1.19 deg inbound
3 Mar       21:57       0.63 deg closest approach
6 Mar       13:40       1.19 deg outbound
8 Mar       17:55       2.0 deg outbound
15 Mar     16:14       4.75 deg outbound

The 1.19 deg reference was included because that was the closest approach 
during the December transit. ACE will spend 4.85 days within the 1.19 deg zone.

=====================================================================
OCRs Executed:

None.

=====================================================================
Ongoing Activities:

TAPS:
- Release 4.2 was delivered on 02/12/04 and is currently being tested by 
the FOT.  This release should contain the functionality required to 
transition from GTAS to TAPS.  The next release 4.2.1 is scheduled for 
03/03/04.
- FOT has submitted comments to TAPS System User's Guide.

----------------------------------------------------------------------------
Automation (ROBOTT):
- Release 0.4 (HSM & OFFLINE) is operational on String 1. The Command & 
Control component was not delivered because it was not ready for 
operational use.
- Offline: 2 DRs have been fixed on String 3; one has been verified and the 
other is still under test by the FOT.
- HSM: 2 DRs have been fixed on String 3; one has been verified and the 
other is still under test by the FOT.
- Command & Control: All 6 DRs for C&C have been fixed on String 3 and are 
currently being tested by the FOT with no issues reported to date.
- RTMON: Minor issues are being found but they're being resolved as soon as 
they are uncovered.  Testing of the failover monitor is to occur this week.

============================================================================
Extra Spacecraft Activities:

DOY 04038 (02/07/2004) - Ran the procedure, S_TLM_SECTIONS for SSR-B, 
SBE_CT=286 and
SCRUB_ERR_CT=0.

DOY 04039 (02/08/2004) - Ran the procedure, S_TLM_SECTIONS for SSR-A, 
SBE_CT=270 and
SCRUB_ERR_CT=12.

=====================================================================
Anomalies:

None this reporting period.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Glen A. Miller
ACE Flight Operations Observatory Engineer
Honeywell Technology Solutions Inc.
Goddard Space Flight Center
Building 14, Room W10A
Mail Stop 428.2
Greenbelt, MD 20771

Office: 301-286-7071
Pager: 800-425-3174
Fax:    301-286-1729
Email: gamiller@pop500.gsfc.nasa.gov
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~